Salesforce sues Microsoft

Boston: The world's biggest maker of Web-based software charged that Microsoft is infringing five Salesforce patents in programs, including in the Windows Server operating system and the widely used .Net platform.

"Microsoft's continuing acts of infringement have caused and are causing irreparable harm to Salesforce.com," the complaint said.

Salesforce is seeking unspecified damages in the suit, which was filed in US District Court for the District of Delaware on Thursday.

The world's biggest maker of web-based software charged that Microsoft is infringing five patents.